A 17-year-old Shelton State College student was shot and killed at a Tuscaloosa apartment complex late Tuesday night.

Investigators believe that Matthew Hunter Callahan was meeting someone at River Road Condominiums, next to the Tuscaloosa Public Library on Jack Warner Parkway.

“We’re not sure who or for what at the moment,” said Tuscaloosa County Metro Homicide Unit assistant commander Lt. Kip Hart. “We have a couple of different ideas on motive, but no known suspect right now.”

Residents of the complex called 911 at 10:53 p.m. Tuesday, after hearing gunshots and finding Callahan lying in the parking lot by his car, Hart said.

Callahan was transported to DCH Regional Medical Center, where he later died.

Callahan lived in the Cottondale area, Hart said.

Investigators were at the apartment complex and the surrounding area off Jack Warner Parkway Wednesday morning.

“We’re still looking for possible witnesses and trying to find out exactly what he was doing over there,” Hart said at noon.